Help with odd noise.

i have noticed that sound in my malibu lately im up to 3300 miles. And its the type of ring where it sounds like its way up in the front of the car.. I can hear it when i accelerate and while im braking to a stop..

Just curious if you guys have experienced this also. When i brake and come to a stop i get a tiny boost at 1000 rpms right before i come to the complete stop.. is this normal? is it something i should worry about??

thanks guys.